JPH02287136A - Abnormality diagnostic device for intake flow rate control valve - Google Patents
Abnormality diagnostic device for intake flow rate control valveInfo
- Publication number
- JPH02287136A JPH02287136A JP1108532A JP10853289A JPH02287136A JP H02287136 A JPH02287136 A JP H02287136A JP 1108532 A JP1108532 A JP 1108532A JP 10853289 A JP10853289 A JP 10853289A JP H02287136 A JPH02287136 A JP H02287136A
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- abnormality
- control valve
- valve
- water intake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005856 abnormality Effects 0.000 title claims abstract description 41
- 230000002159 abnormal effect Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 67
- 238000003745 diagnosis Methods 0.000 claims description 14
- 230000000875 corresponding effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は、取水場から浄水場などの水処理施設へ送水す
る取水導水管の途中に設けた取水流量制御弁に対する異
常診断装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an abnormality diagnosis device for a water intake flow rate control valve provided in the middle of a water intake pipe that transports water from a water intake plant to a water treatment facility such as a water purification plant.
頭記の浄水場では、取水場の取水井と浄水場の調整池（
着水井）との間を結ぶ取水導水管の途中に取水流量制御
弁を設け、浄水場の配水計画を基に、調整池へ送り込む
取水流量と後段の浄水処理部へ向けて送水する流量とが
バランスするように取水井と調整池との間で取水流量の
制御を行うようにしている。In the water treatment plant mentioned above, the intake well of the water intake plant and the regulating pond (
A water intake flow control valve is installed in the middle of the water intake conduit that connects the water receiving well (water receiving well), and the intake flow rate to be sent to the regulating reservoir and the flow rate to be sent to the subsequent water purification processing section are controlled based on the water distribution plan of the water treatment plant. The intake flow rate is controlled between the intake well and the regulating pond to maintain a balance.
〔発明が解決しようとする課題］
ところで、前記の取水井から母整地に送り込む浄水処理
前の水は泥砂、ごみなどを含んでおり、このために取水
を行っている最中ににしばしばごみなどの異物が取水流
量制御弁に詰まる異常事態の発生することがある。[Problems to be Solved by the Invention] By the way, the unpurified water that is sent from the above-mentioned water intake well to the main land leveling contains mud, sand, garbage, etc. Therefore, during water intake, garbage and other substances are often removed. Abnormal situations may occur where foreign objects clog the water intake flow control valve.
しかして従来では取水流量制御弁の異常状態検出は行っ
ておらず、異物が詰まったままの状態で取水の流量制御
を続行しているのが現状である。However, in the past, the abnormal state of the water intake flow rate control valve was not detected, and the current situation is that the water intake flow rate control continues in a state where the valve remains clogged with foreign matter.
そのために異物が詰まった状態で無理やりに弁操作する
と、弁機構に過度なトルクが加わって故障し、これが基
で水処理施設の運用に重大な支障を来すと言った問題が
発生する。Therefore, if the valve is forcibly operated when the valve is clogged with foreign matter, excessive torque is applied to the valve mechanism, causing it to malfunction, which can seriously impede the operation of the water treatment facility.
本発明は上記の点にかんがみなされたものであり、取水
流量制御弁に異常が発生した際には、弁故障に至る以前
にオペレータに異常を自動的に知らせることができるよ
うにした取水流量制御弁の異常診断装置を提供すること
を目的とする。The present invention has been made in consideration of the above points, and provides a water intake flow rate control system that is capable of automatically notifying an operator of the abnormality before the valve malfunctions when an abnormality occurs in the water intake flow rate control valve. The purpose of the present invention is to provide a valve abnormality diagnosis device.
上記課題を解決するために、本発明による異常診断装置
は、取水流量制御弁の弁開度／流量特性から弁開度に対
応する流量データを求める手段と、流量計で計測した流
量実測値と同時に検出した取水流量制御弁の弁開度に対
応する前記の流量データとを比較してその流量差を求め
る演算手段と、弁の異常発生を知らせる警報手段とを備
え、流量実測値と流量データとの流量差が異常判定基準
値を超えた条件で取水流量制御弁が異常であると判定し
て警報を出力するように構成するものとする。In order to solve the above problems, the abnormality diagnosis device according to the present invention includes a means for obtaining flow rate data corresponding to the valve opening degree from the valve opening degree/flow rate characteristic of the water intake flow rate control valve, and an actual flow rate value measured by a flow meter. It is equipped with a calculation means for calculating the flow rate difference by comparing the flow rate data corresponding to the valve opening degree of the water intake flow rate control valve detected at the same time, and an alarm means for notifying the occurrence of valve abnormality. The water intake flow rate control valve is configured to determine that the intake flow rate control valve is abnormal and output an alarm under conditions in which the difference in flow rate between the intake flow rate control valve and the intake flow rate exceeds an abnormality determination reference value.
取水導水管系で取水の流量制御を行っている最中に、取
水流量制御弁に異物が詰った異常事態が生じると、弁開
度と実際に導水管を流れる流量とが対応しなくなり、弁
が十分量いていても水の流れが異物で絞られるために流
量が小さくなる。If an abnormal situation occurs in which the intake flow rate control valve is clogged with foreign matter while controlling the intake flow rate in the water intake pipe system, the valve opening will not correspond to the flow rate that actually flows through the water pipe, and the valve will be closed. Even if there is a sufficient amount of water, the flow rate will be small because the flow of water will be restricted by foreign objects.
そこで、前記の構成においては、取水流量制御弁の弁開
度を常時検出し、取水流量制御弁の弁開度／流量特性カ
ーブより求めた検出弁開度に対応する流量データＱ２と
、流量計で計測した取水流量の実測値旧とを比較して両
者の流量差ＩＱＩ−９２を演算し、ここで前記の流量差
ＩＱＩ−９２１があらかじめ定めた異常判定基準値Ｑ３
を超えた条件で異常と判定して警報信号を出力し、警報
器を作動させる。これにより取水流量制御弁の異常診断
を自動的に行うことができる。Therefore, in the above configuration, the valve opening degree of the water intake flow control valve is constantly detected, and the flow rate data Q2 corresponding to the detected valve opening degree obtained from the valve opening degree/flow rate characteristic curve of the water intake flow rate control valve and the flow rate meter A flow difference IQI-92 between the two is calculated by comparing the actual measured water intake flow rate measured with the old value, and here the flow difference IQI-921 is determined as the predetermined abnormality judgment reference value Q3.
If the condition exceeds the above, it will be judged as abnormal, and an alarm signal will be output and the alarm will be activated. Thereby, abnormality diagnosis of the water intake flow rate control valve can be automatically performed.
また、異常診断装置と取水流量制御弁の制御部とを連繋
し、異常発生を検出した際にその警報信号を制御部に与
えて以降の弁制御動作を中断することにより、無理やり
な弁操作による弁の故障発生を未然に回避できる。In addition, by linking the abnormality diagnosis device and the control section of the water intake flow rate control valve, and when an abnormality is detected, an alarm signal is given to the control section and subsequent valve control operations are interrupted. Valve failures can be avoided.
第１図は本発明実施例のフロー図を示すものである０図
において、１は取水場の取水井、２は浄水場の調整池（
着水井）、３は取水井１と調整池２との間に配管した取
水導水管、４は導水管３の途中に設けた電動弁としての
取水流量制御弁、５は流量計、６は取水流量の制御部、
７が本発明による取水流量制御弁の異常診断装置である
。また、異常診断装置７は、流量データ続出部８、演算
部９、タイマ１０、警報器１１、および流量指示計１２
゜１３などで構成されている。Fig. 1 shows a flowchart of an embodiment of the present invention.
3 is an intake water pipe piped between the water intake well 1 and the regulating reservoir 2, 4 is a water intake flow control valve as an electric valve installed in the middle of the water pipe 3, 5 is a flow meter, and 6 is a water intake pipe. flow control unit,
7 is an abnormality diagnosis device for a water intake flow rate control valve according to the present invention. The abnormality diagnosis device 7 also includes a flow rate data output unit 8, a calculation unit 9, a timer 10, an alarm 11, and a flow rate indicator 12.
It consists of ゜13, etc.
ここで、流量データ続出部８は取水流量制御弁４に固を
な弁開度／流量特性１４を基に、取水流量制御弁４に付
設の弁開度検出器１５で検出した弁開度Ｚに対応する流
量データＱ２を読み出すものである。また、演算部９は
流量計５で計測し、た流量実測値Ｑ１と前記の流量デー
タＱ２とを比較演算してあらかじめ定めた異常判定基準
値Ｑ３と対比判定する。Here, the flow rate data succession unit 8 calculates the valve opening degree Z detected by the valve opening degree detector 15 attached to the water intake flow rate control valve 4 based on the valve opening degree/flow rate characteristic 14 that is specific to the water intake flow rate control valve 4. The flow rate data Q2 corresponding to is read out. Further, the calculating section 9 compares and calculates the actual flow rate value Q1 measured by the flow meter 5 and the above-mentioned flow rate data Q2, and compares and determines the flow rate with a predetermined abnormality determination reference value Q3.
なお、前記の流量値Ｑｌ、 １１２は流量指示計１２．
１３に指示される。Note that the flow rate value Ql, 112 is the flow rate indicator 12.
13 is instructed.
かかる構成で、通常は流量計５で計測した流量実測値Ｑ
１を制御部６で取り込み、流量設定値との偏差を制御信
号として取水流量制御弁４の弁開度を調整することによ
り、取水井１から調整池２に送り込む取水流量を一定に
保つように流量制御している。With such a configuration, the actual flow rate Q measured by the flow meter 5 is usually
1 is taken in by the control unit 6, and the deviation from the flow rate setting value is used as a control signal to adjust the valve opening of the intake flow rate control valve 4, thereby maintaining the intake flow rate sent from the intake well 1 to the regulating pond 2 at a constant level. Flow rate is controlled.
一方、流量計５で計測した流量実測値Ｑ１．および弁開
度検出器１５で検出した取水流量制御弁４の弁開度Ｚは
時々刻々に異常診断装置７に取り込まれる。そして、演
算部９では流量実測値Ｑ１と弁開度／流量特性１４から
求めた検出弁開度Ｚに対応する流量データＱ２との流量
差ＩＱＩ−Ｑ２１を演算した上であらかじめ定めた異常
判定基準４ｆｉＱ３と対比する。ここで、流量差ＩＱＩ
−１１２１の演算値が異常判定基準値Ｑ３を超えるた条
件で取水流量制御弁４に異常が発生したと判定し、かつ
タイマ１０によりこの異常状態が所定時間（数分程度）
継続したことを確認した上で警報器１１に警報信号Ａを
与え、異常発生をオペレータに知らせる。同時にこの警
報信号Ａは制御部６にも与えられ、取水流量制御弁４の
弁開度をその時点の状態に止めるように以降の流量制御
動作を中断する。なお、取水流量制御弁４の異常を復旧
した上で制御部６をリセットすれば、再び通常の流量制
御状態に復帰する。On the other hand, the actual flow rate Q1 measured by the flow meter 5. The valve opening degree Z of the water intake flow rate control valve 4 detected by the valve opening degree detector 15 is taken into the abnormality diagnosis device 7 from time to time. Then, the calculation unit 9 calculates the flow rate difference IQI-Q21 between the actual flow rate value Q1 and the flow rate data Q2 corresponding to the detected valve opening degree Z obtained from the valve opening degree/flow rate characteristic 14, and then calculates the predetermined abnormality judgment standard. Contrast with 4fiQ3. Here, the flow rate difference IQI
It is determined that an abnormality has occurred in the water intake flow control valve 4 under the condition that the calculated value of -1121 exceeds the abnormality determination reference value Q3, and the timer 10 indicates that this abnormal state will last for a predetermined period of time (about several minutes).
After confirming that the abnormality has continued, an alarm signal A is given to the alarm device 11 to notify the operator of the occurrence of the abnormality. At the same time, this alarm signal A is also given to the control unit 6, and the subsequent flow rate control operation is interrupted so that the valve opening of the water intake flow rate control valve 4 remains at the current state. Note that if the abnormality in the intake flow rate control valve 4 is corrected and the control unit 6 is reset, the normal flow rate control state is restored again.
なお、取水流量ＩＩＮ御弁４の弁開度／流量特性は取水
井ｌの水位変動に伴って変化する。したがって取水井１
に設置の水位計１６で検出した水位信号Ｈを取り込んで
先記した弁開度／流量特性１４の格納データを補正する
ことにより、圧力変動を考慮した流量データを基に弁の
異常診断をより的確に行うことができる。Note that the valve opening/flow rate characteristics of the water intake flow rate IIN control valve 4 change as the water level of the water intake well l changes. Therefore, intake well 1
By taking in the water level signal H detected by the water level gauge 16 installed in the water level meter 16 and correcting the stored data of the valve opening/flow rate characteristic 14 described above, valve abnormality diagnosis can be made more easily based on the flow rate data that takes pressure fluctuations into account. Can be done accurately.
本発明による取水流量制御弁の異常診断装置は、以上述
べたように構成されているので、決起の効果を奏する。The abnormality diagnosing device for a water intake flow control valve according to the present invention is configured as described above, and therefore exhibits an outstanding effect.
（１）流量制御を行っている状態で取水流量制御弁にご
みなどの異物が詰まった際には、その異常発生を自動的
に検出してオペレータに知らせ、単色な復旧を図ること
ができる。(1) If the water intake flow rate control valve becomes clogged with foreign matter such as dirt while controlling the flow rate, the occurrence of the abnormality can be automatically detected and notified to the operator, allowing for a simple recovery.
（２）また、当該異常診断装置を取水流量制御弁の制御
系に連繋して、異常発生時以降の取水流量制御弁の制御
動作を自動的に中断させることにより、異物が詰まった
ままでの無理やりな弁操作による弁機構の故障発生を未
然に防止できる。(2) In addition, by linking the abnormality diagnosis device to the control system of the water intake flow rate control valve and automatically interrupting the control operation of the water intake flow rate control valve after an abnormality occurs, it is possible to prevent unforeseen problems while the foreign matter remains clogged. It is possible to prevent failure of the valve mechanism due to manual valve operation.
第１図は本発明実施例による取水流量制御弁の異常診断
装置のフロー図である。図において、１：取水井、２
： ｔＮ整地、３：取水導水管、４：取水流量制御弁、
５：流量針、６：流量制御部、７：異常診断装置、８：
流量データ読取部、９：演算部、１１：警報器、１４：
弁開度／流量特性、１５：弁開度検出器。FIG. 1 is a flowchart of an abnormality diagnosis apparatus for a water intake flow rate control valve according to an embodiment of the present invention. In the figure, 1: intake well, 2
: tN leveling, 3: Water intake pipe, 4: Water intake flow control valve,
5: Flow rate needle, 6: Flow rate control unit, 7: Abnormality diagnosis device, 8:
Flow rate data reading section, 9: Calculation section, 11: Alarm device, 14:
Valve opening/flow rate characteristics, 15: Valve opening detector.
Claims (1)
断装置であって、取水流量制御弁の弁開度／流量特性か
ら弁開度に対応する流量データを求める手段と、流量計
で計測した導水管の流量実測値と同じ時点で検出した取
水流量制御弁の弁開度に対応する前記の流量データとを
比較してその流量差を求める演算手段と、弁の異常発生
を知らせる警報手段とを備え、流量実測値と流量データ
との流量差が異常判定基準値を超えた条件で取水流量制
御弁が異常であると判定して警報信号を出力するように
構成したことを特徴とする取水流量制御弁の異常診断装
置。1) An abnormality diagnosis device for a water intake flow rate control valve installed in the middle of a water intake water pipe, which includes means for obtaining flow rate data corresponding to the valve opening degree from the valve opening degree/flow rate characteristics of the intake flow rate control valve, and a flow meter. Calculating means for calculating the flow rate difference by comparing the measured flow rate value of the water conveyance pipe with the above-mentioned flow rate data corresponding to the valve opening of the water intake flow rate control valve detected at the same time, and an alarm for notifying the occurrence of valve abnormality. and configured to determine that the water intake flow rate control valve is abnormal and output an alarm signal under conditions where the flow rate difference between the actual flow rate value and the flow rate data exceeds an abnormality determination reference value. Abnormality diagnosis device for water intake flow control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1108532A JPH0658295B2 (en) | 1989-04-27 | 1989-04-27 | Abnormality diagnostic device for intake flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1108532A JPH0658295B2 (en) | 1989-04-27 | 1989-04-27 | Abnormality diagnostic device for intake flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02287136A true JPH02287136A (en) | 1990-11-27 |
| JPH0658295B2 JPH0658295B2 (en) | 1994-08-03 |
Family
ID=14487195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1108532A Expired - Lifetime JPH0658295B2 (en) | 1989-04-27 | 1989-04-27 | Abnormality diagnostic device for intake flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0658295B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008065812A (en) * | 2006-09-05 | 2008-03-21 | Yokogawa Electric Corp | Method and system for evaluating control valve performance |
| CN109153452A (en) * | 2017-12-18 | 2019-01-04 | 深圳市大疆创新科技有限公司 | Sowing apparatus and its control method and plant protection drone |
-
1989
- 1989-04-27 JP JP1108532A patent/JPH0658295B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008065812A (en) * | 2006-09-05 | 2008-03-21 | Yokogawa Electric Corp | Method and system for evaluating control valve performance |
| DE102007036057B4 (en) * | 2006-09-05 | 2015-11-19 | Yokogawa Electric Corp. | Method for evaluating the performance of a control valve and associated device |
| CN109153452A (en) * | 2017-12-18 | 2019-01-04 | 深圳市大疆创新科技有限公司 | Sowing apparatus and its control method and plant protection drone |
| CN109153452B (en) * | 2017-12-18 | 2023-04-04 | 深圳市大疆创新科技有限公司 | Sowing device, control method thereof and plant protection unmanned aerial vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0658295B2 (en) | 1994-08-03 |
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